Backpack assembly having carrying accessory with back plate

ABSTRACT

A backpack assembly includes a bag body and a carrying accessory. The carrying accessory includes a back plate, a bag strap, and a waistband. The back plate has a first engaging portion and a second engaging portion which are opposite to each other, and has a middle portion located between the first engaging portion and the second engaging portion. The first engaging portion is adapted to be engaged with the bag body. A first connecting hole is disposed on the middle portion. The bag strap has two shoulder straps and a first connecting strap which passes through the first connecting hole. A first fastening member is disposed on each of the shoulder straps. The waistband engaged with the second engaging portion is connected to the first fastening members. With such design, the backpack assembly could be engaged with different bag bodies with different functions, different capacities, or different sizes.

BACKGROUND OF THE INVENTION Technical Field

The present invention relates generally to a backpack, and moreparticularly to a backpack assembly for engaging a carrying accessorywith a back plate.

Description of Related Art

Conventional backpacks are all integrated and non-detachable. In otherwords, a bag body and a bag strap of the conventional backpack are sewntogether. As a result, the conventional backpack cannot replace the bagbody with another bag body having different capacities or functions,which is inconvenient for the user.

BRIEF SUMMARY OF THE INVENTION

In view of the above, the primary objective of the present invention isto provide a backpack assembly, a carrying accessory, and a back plate,so that a user could use the same carrying accessory to match differentbag bodies.

The present invention provides a carrying accessory, which is adapted tobe connected to a bag body and includes a back plate, a bag strap, and awaistband, wherein the back plate has a first engaging portion and asecond engaging portion which are opposite to each other. The firstengaging portion is adapted to be engaged with the bag body. The backplate has a middle portion located between the first engaging portionand the second engaging portion, and one or more first connecting holeis disposed on the middle portion. The bag strap has two shoulder strapsand a first connecting strap, wherein a first fastening member isdisposed on each of the shoulder straps. The first connecting strappasses through the one or more first connecting hole. The waistband isengaged with the second engaging portion and is connected to the firstfastening members.

The present invention further provides a backpack assembly, including abag body and a carrying accessory adapted to be connected to the bagbody, wherein the carrying accessory includes a back plate, a bag strap,and a waistband. The back plate has a first engaging portion and asecond engaging portion which are opposite to each other. The firstengaging portion is adapted to be engaged with the bag body. The backplate has a middle portion located between the first engaging portionand the second engaging portion, and one or more first connecting holeis disposed on the middle portion. The bag strap has two shoulder strapsand a first connecting strap, wherein a first fastening member isdisposed on each of the shoulder straps. The first connecting strappasses through the one or more first connecting hole. The waistband isengaged with the second engaging portion and is connected to the firstfastening members.

The present invention further provides a back plate, which is adapted tobe engaged with a bag body and is characterized in that the back platehas a first engaging portion and a second engaging portion which areopposite to each other, wherein the first engaging portion is adapted tobe engaged with the bag body, and the second engaging portion is adaptedto be engaged with a waistband; the back plate has a middle portionlocated between the first engaging portion and the second engagingportion, wherein the middle portion is adapted to be engaged with a bagstrap.

With the aforementioned design, the back panel and the carryingaccessory of the present invention can be engaged with different bagbodies, which is convenient for the user to change different bag bodiesdepending on the required demand.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

The present invention will be best understood by referring to thefollowing detailed description of some illustrative embodiments inconjunction with the accompanying drawings, in which

FIG. 1 is a schematic view of the carrying accessory according to anembodiment of the present invention;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a schematic view showing the first surface of the back plate;

FIG. 4 is a schematic view showing the second surface of the back plate;

FIG. 5 is a schematic view showing the first surface of the bag strap;

FIG. 6 is a schematic view showing the second surface of the bag strap;

FIG. 7 is a schematic view showing the bag strap engaged with the backplate;

FIG. 8 is a schematic view showing the bag strap engaged with the backplate at another position;

FIG. 9 is a simplified sectional view along line 9-9 in FIG. 8 showingthe first connecting strap of the bag strap penetrating through thefirst connecting hole of the back plate;

FIG. 10 is a perspective view of the waistband;

FIG. 11 is a schematic view showing how the back plate is to be engagedwith the waistband;

FIG. 12 is a schematic view showing the back plate engaged with thewaistband;

FIG. 13 is a sectional view along the 13-13 line in FIG. 12;

FIG. 14 is a partially exploded view showing the carrying accessory asit is to be engaged with the bag body;

FIG. 15 is a schematic view showing the carrying accessory engaged withthe bag body and wherein the bag strap and the waistband are omitted;

FIG. 16 is a partially exploded view showing the back plate engaged withthe bag body alone;

FIG. 17 is a schematic view showing the back plate engaged with the bagbody and the engaging hole of the back plate connected to the engagingring of the bag body via the engaging strap; and

FIG. 18 is a schematic view of a backpack assembly according to anotherembodiment of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

A backpack assembly 100 of an embodiment according to the presentinvention is illustrated in FIG. 1 and FIG. 2 and includes a carryingaccessory 1 and a bag body 2 (shown in FIG. 14), wherein the carryingaccessory 1 is adapted to be engaged with the bag body 2 and includes aback plate 10, a bag strap 20, and a waistband 30.

The back plate 10 has a first engaging portion 12 and a second engagingportion 14, which are opposite to each other, wherein the first engagingportion 12 is adapted to be engaged with the bag body 2. In addition,the back plate 10 has a middle portion 16 located between the firstengaging portion 12 and the second engaging portion 14, wherein themiddle portion 16 has one or more first connecting hole 16 a. In thecurrent embodiment, the middle portion 16 has at least two firstconnecting holes 16 a, wherein one of the first connecting holes 16 a isdisposed closer to the upper first engaging portion 12 than the secondengaging portion 14, while another first connecting hole 16 a isdisposed closer to the lower second engaging portion 14 than the firstengaging portion 12. However, in other embodiments, the number of thefirst connecting hole could be three or more than three. Preferably,each of the first connecting holes is arranged at intervals in alongitudinal direction of the back plate 10.

As shown in FIG. 2 to FIG. 4, in the current embodiment, the back plate10 has a first surface 10 a and a second surface 10 b, wherein the firstsurface 10 a faces a user, and the second surface 10 b faces the bagbody 2. Preferably, in the current embodiment, a middle portion 16 ofthe first surface 10 a forms a first bulging portion 17 a, and aplurality of second bulging portions 17 b are respectively formed on twolateral sides of the middle portion 16. For instance, as shown in FIG.3, there are three second bulging portions 17 b formed on each of twolaterals sides of the middle portion 16, and a groove 17 c is formedbetween each two adjacent second bulging portions 17 b, and between anouter peripheral portion of the back plate 10 and the second bulgingportions 17 b, and between the first bulging portion 17 a and the secondbulging portions 17 b, and between the outer peripheral portion of theback plate 10 and the first bulging portion 17 a. With such design, whenthe user carries on the backpack assembly, the bulging portions and thegrooves 17 c between the user's back and the back plate 10 facilitateventilation and heat dissipation, so that the user's back could feelmore comfortable. Additionally, in the current embodiment, a firstrecessing portion 17 d is formed on the second surface 10 b at aposition corresponding to the first bulging portion 17 a, and a secondrecessing portion 17 e is formed on the second surface 10 b at aposition corresponding to each of the second bulging portions 17 b, sothat the back plate 10 could be more light weight.

The bag strap 20 has two shoulder straps 22 and a first connecting strap24, wherein a first fastening member 23 is disposed on each of theshoulder straps 22. The first connecting strap 24 is adapted to bepenetrated through the first connecting hole 16 a on the back plate 10,thereby to engage the bag strap 20 and the back plate 10. In the currentembodiment, the bag strap 20 further includes a strap body 21 connectedto the shoulder straps 22 and the first connecting strap 24.

As shown in FIG. 2, FIG. 3, FIG. 5, and FIG. 6, a first adhesive portion18 is disposed on the middle portion 16 of the back plate 10 or isdisposed on the entire first surface 10 a of the back plate 10. The bagstrap 20 has a first surface 20 a facing the user and a second surface20 b facing the back plate 10. A second adhesive portion 26 is disposedon the second surface 20 b, and could be detachably engaged with thefirst adhesive portion 18. For instance, the first adhesive portion 18could be a loop fastener, and the second adhesive portion 26 could be ahook fastener. Alternatively, in an embodiment, one of the firstadhesive portion 18 and the second adhesive portion 26 could be afastener, and the other one could be made of a material that could beattached to the fastener.

As shown in FIG. 7 to FIG. 9, when the bag strap 20 is to be engagedwith the back plate 10, the second surface 20 b of the bag strap 20 isdirected toward the first surface 10 a of the back plate 10 first, andthe first connecting strap 24 is penetrated through one of the firstconnecting holes 16 a and is penetrated through the second surface 10 bof the back plate 10. After that, the first connecting strap 24 ispenetrated through another first connecting hole 16 of the back plate 10and is penetrated through the first surface 10 a of the back plate 10 tobe engaged with the bag strap 20. As shown in FIG. 8, in an embodiment,an engaging member 27 is disposed on the strap body 21, and the firstconnecting strap 24 passing through the another first connecting hole 16could be engaged with the engaging member 27, wherein the engagingmember 27 could be, but not limited to, a release buckle, a snap button,a snap hook, a webbing buckle, a three way buckle, a fastener, a clasp,or etc. It is noted that, a position that the bag strap 20 engaged withthe back plate 10 could be adjusted to meet various requirements. Forinstance, as shown in FIG. 7, the bag strap 20 is engaged with the backplate 10 at a middle position of the back plate 10, and is fixed on theback plate 10 accordingly by engaging the second adhesive portion 26 onthe bag strap 20 and the first adhesive portion 18 on the back plate 10.Alternatively, as shown in FIG. 8, the bag strap 20 is engaged with theback plate 10 at an upper position of the back plate 10. However, inother embodiments, the bag strap 20 could be engaged with the back plate10 at a lower position of the back plate 10 close to the lower firstconnecting hole 16 a.

In the current embodiment, a pair of engaging members 28 a, 28 b whichcould be engaged with each other is further disposed on the shoulderstraps 22, so that when the user wears the bag strap 20, the engagingmembers 28 a, 28 b could be engaged with each other to stably providethe shoulder straps 22 on the user's shoulders.

As shown in FIG. 2 and FIG. 10, the waistband 30 is engaged with thesecond engaging portion 14 of the back plate 10 and is connected to thefirst fastening members 23 on the bag strap 20. In the currentembodiment, the waistband 30 has a pocket 32 for receiving the secondengaging portion 14 of the back plate 10. A pair of engaging members 34a, 34 b is disposed on two lateral sides of the waistband 30respectively, wherein the engaging members 34 a, 34 b could be engagedwith each other, so that the waistband 30 forms a circle surrounding theuser's waist. In addition, two second fastening members 36 are disposedon the waistband 30 for being detachably engaged with the firstfastening members 23 on the bag strap 20 respectively, so that theshoulder straps 22 could be carried by the user. With such design, whenthe waistband 30 is fixed on the user's waist, the waistband 30 couldprovide a corresponding supporting force to the back plate 10.

As shown in FIG. 11 to FIG. 13, in the current embodiment, a secondconnecting hole 14 a is disposed on the second engaging portion 14, anda second connecting strap 38 is disposed on the waistband 30. When thesecond engaging portion 14 of the back plate 10 is received into thepocket 32, the second connecting strap 38 is penetrated through thesecond connecting hole 14 a and is fixed, thereby to engage the backplate 10 and the waistband 30, preventing the second engaging portion 14of the back plate 10 being disengaged from the pocket 32. Preferably, anengaging member 38 a is disposed on the second connecting strap 38, andan engaging portion 39 is disposed on the waistband 30, so that when thesecond connecting strap 38 passes through the second connecting hole 14a, the second connecting strap 38 could be fixed by engaging theengaging member 38 a and the engaging portion 39. For instance, theengaging member 38 a could be a fastener, and the engaging portion 39could be another relative fastener, so that the engaging member 38 acould be detachably engaged with the engaging portion 39. It is notedthat, in the current embodiment, the engaging portion 39 is disposed onan interlayer inside the pocket 32, which provides a better appearance.In addition, since the second connecting strap 38 is engaged with theengaging portion 39 inside the pocket 32, a possibility that theengaging member 38 a of the second connecting strap 38 beingunexpectedly disengaged from the engaging portion 39 could be reduced.

As shown in FIG. 14 and FIG. 15, while using the backpack assembly 100of the present invention, the back plate 10 is engaged with the bag body2. For instance, in an embodiment, the bag body 2 has an engaging pocket3, and the first engaging portion 12 of the back plate 10 could bereceived into the engaging pocket 3, so that when the user carries thecarrying accessory 1, the carrying accessory 1 could hold the bag body 2via the first engaging portion 12 of the back plate 10. In addition,when the user wants to change different types of bag body 2 (e.g. bagbody with different functions or different capacities), the bag body 2could be changed by simply taking out the first engaging portion 12 ofthe back plate 10 from the engaging pocket 3 of the bag body 2, which isquick and convenient. Moreover, to further enhance the engagingstability between the back plate 10 and the bag body 2, a plurality ofengaging rings 4 could be disposed on the bag body 2, and a plurality ofengaging holes 19 could be disposed on two lateral sides of the backplate 10, so that the user could connect the engaging rings 4 and theengaging holes 19 by using an engaging member such as ropes, engagingstraps, ring fasteners, or etc., strengthening an engaging performancebetween the back plate 10 and the bag body 2.

As shown in FIG. 16 and FIG. 17, in an embodiment, the back plate 10could be engaged with the bag body 2 singly. For instance, by using anengaging strap 40 to penetrate through at least one of the engagingholes 19 on the same side of the back plate 10 and at least one of theengaging rings 4 on the corresponding side of the bag body 2 first, andthe engaging strap 40 is fixed via an engaging member 6 such as, but notlimited to, a release buckle, a snap button, a snap hook, a webbingbuckle, a three way buckle, a fastener, a clasp, a belt buckle, or etc.In this way, the user could carry the back plate 10 and the bag body 2via the engaging strap 40. In other words, the backpack becomes ahand-carry backpack, providing various ways of use. Additionally, theother side of the back plate 10 and the corresponding side of the bagbody 2 could be engaged by using another engaging strap 41. However, theengaging member is not limited by the aforementioned design, but couldbe other engaging members such as a ring fastener or etc. to engage theengaging holes 19 of the back plate 10 and the engaging rings 4 of thebag body 2.

As shown in FIG. 18, in another embodiment according to the presentinvention, two first engaging portions 7 a are disposed on an upper halfportion of a bag body 7, and two positioning holes 19 a are disposed onthe back plate 10, and a second engaging portion 22 a is disposed oneach of the shoulder straps 22 of the bag strap 20. In the currentembodiment, each of the first engaging portions 7 a is a ring, and eachof the second engaging portions 22 a is a ring fastener connected to theshoulder straps 22. When the back plate 10 is erected, the firstengaging portions 7 a are disposed in a same horizontal direction of thebag body 7, and the positioning holes 19 a are disposed in a samehorizontal direction of the back plate 10. During the process ofassembling, the two first engaging portions 7 a could be respectivelypenetrated through the two positioning holes 19 a first, and the secondengaging portions 22 a are respectively and detachably engaged with thefirst engaging portions 7 a. In this way, when the user wears theshoulder straps 22, the second engaging portions 22 a hold the firstengaging portion 7 a, so that the bag body 7 could be positioned on arear side of the back plate 10. However, the structures of the firstengaging portion and the second engaging portion are not limited by theaforementioned design, but could be other engaging members such as apair of connecting buckles, a pair of belt buckles, male and femalebuckles, hook and loop fasteners, or other equivalent structures. Inother embodiments, when the back plate 10 is erected, two positioningholes 19 a are disposed in each of a plurality of horizontal directionsof the back plate 10, and the positioning holes 19 a in differenthorizontal directions are arranged at intervals in a longitudinaldirection of the back plate 10, wherein the positioning holes 19 a couldbe disposed on the second bulging portions 17 b of the back plate 10.During the process of assembling, the user could selectively penetratethe first engaging portions 7 a through any two positioning holes 19 adisposed in the same horizontal directions of the back plate 10.

As shown in FIG. 18, in the current embodiment, two third engagingportions 7 b are disposed on a lower half portion of the bag body 7, andtwo fourth engaging portions 30 a are disposed on the waistband 30,wherein the fourth engaging portions 30 a could be respectively engagedwith the third engaging portions 7 b. For instance, in the currentembodiment, each of the third engaging portions 7 b is a ring, and eachof the fourth engaging portions 30 a is a ring fastener, so that thethird engaging portions 7 b and the fourth engaging portions 30 a couldbe detachably engaged. However, in other embodiments, the third engagingportions 7 b and the fourth engaging portions 30 a could be otherengaging members such as a pair of connecting buckles, a pair of beltbuckles, male and female buckles, hook and loop fasteners, or otherequivalent structures.

In summary, with the backpack assembly, the carrying accessory, and theback plate of the present invention, the user not only could easilychange different bag bodies with different functions, differentcapacities, or different sizes, but also could carry the bag body invarious ways (e.g. as a backpack or as a hand-carry bag).

It must be pointed out that the embodiments described above are onlysome preferred embodiments of the present invention. All equivalentstructures which employ the concepts disclosed in this specification andthe appended claims should fall within the scope of the presentinvention.

What is claimed is:
 1. A carrying accessory, which is adapted to be connected to a bag body, comprising: a back plate having a first engaging portion and a second engaging portion which are opposite to each other, wherein the first engaging portion is adapted to be engaged with the bag body; the back plate has a middle portion located between the first engaging portion and the second engaging portion, and one or more first connecting hole is disposed on the middle portion; a bag strap having two shoulder straps and a first connecting strap, wherein a first fastening member is disposed on each of the shoulder straps; the first connecting strap passes through the one or more first connecting hole; and a waistband engaged with the second engaging portion and connected to the first fastening members.
 2. The carrying accessory of claim 1, wherein the middle portion comprises at least two first connecting holes, and the first connecting strap passes through at least two of the at least two first connecting holes to be engaged with the bag strap.
 3. The carrying accessory of claim 1, wherein a first adhesive portion is disposed on the middle portion of the back plate; the bag strap has a strap body connected to the shoulder straps and the first connecting strap; a second adhesive portion is disposed on the strap body for being detachably engaged with the first adhesive portion.
 4. The carrying accessory of claim 3, wherein the strap body is connected to an engaging member; when the first connecting strap passes through the one or more first connecting hole, the first connecting strap is engaged with the engaging member.
 5. The carrying accessory of claim 1, wherein a second connecting hole is disposed on the second engaging portion of the back plate; the waistband is connected to a second connecting strap; the second connecting strap passes through the second connecting hole and is then engaged with an engaging portion disposed on the waistband.
 6. The carrying accessory of claim 1, wherein the waistband has a pocket, and the second engaging portion is inserted into the pocket.
 7. The carrying accessory of claim 1, wherein the waistband is connected to two second fastening members which are respectively and detachably engaged with the first fastening members.
 8. The carrying accessory of claim 1, wherein a first bulging portion is formed on the middle portion of the back plate, and a plurality of second bulging portions are respectively formed on two lateral sides of the middle portion; a groove is formed between each adjacent second bulging portions and is formed between each of the second bulging portions and the first bulging portion.
 9. A backpack assembly, comprising: a bag body; and a carrying accessory, which is adapted to be connected to the bag body, comprising: a back plate having a first engaging portion and a second engaging portion which are opposite to each other, wherein the first engaging portion is adapted to be engaged with the bag body; the back plate has a middle portion located between the first engaging portion and the second engaging portion, and one or more first connecting hole is disposed on the middle portion; a bag strap having two shoulder straps and a first connecting strap, wherein a first fastening member is disposed on each of the shoulder straps; the first connecting strap passes through the one or more first connecting hole; and a waistband engaged with the second engaging portion and connected to the first fastening members.
 10. The carrying accessory of claim 9, wherein a first adhesive portion is disposed on the middle portion of the back plate; the bag strap has a strap body connected to the shoulder straps and the first connecting strap; a second adhesive portion is disposed on the strap body for being detachably engaged with the first adhesive portion.
 11. The carrying accessory of claim 9, wherein a second connecting hole is disposed on the second engaging portion of the back plate; the waistband is connected to a second connecting strap; the second connecting strap passes through the second connecting hole and is then engaged with an engaging portion disposed on the waistband.
 12. The backpack assembly of claim 9, wherein the bag body has an engaging pocket, and the first engaging portion of the back plate is inserted into the engaging pocket.
 13. The backpack assembly of claim 9, wherein a plurality of engaging rings are disposed on the bag body, and a plurality of engaging holes are disposed on two lateral sides of the back plate; the backpack assembly comprises an engaging strap adapted to be passed through at least one of the engaging holes and at least one of the engaging rings.
 14. The backpack assembly of claim 9, wherein two first engaging portions are disposed on an upper half portion of the bag body, and two positioning holes are disposed on the back plate, and a second engaging portion is disposed on each of the shoulder straps; the first engaging portions disposed on the upper half portion of the bag body respectively pass through the positioning holes, and are respectively engaged with the second engaging portions on the shoulder straps then.
 15. The backpack assembly of claim 9, wherein two third engaging portions are disposed on a lower half portion of the bag body, and two fourth engaging portions are disposed on the waistband; the fourth engaging portions are respectively engaged with the third engaging portions.
 16. A back plate, which is adapted to be engaged with a bag body; the back plate is characterized in that: the back plate has a first engaging portion and a second engaging portion which are opposite to each other, wherein the first engaging portion is adapted to be engaged with the bag body, and the second engaging portion is adapted to be engaged with a waistband; the back plate has a middle portion located between the first engaging portion and the second engaging portion, wherein the middle portion is adapted to be engaged with a bag strap.
 17. The back plate of claim 16, wherein the middle portion of the back plate has two first connecting holes; one of the first connecting holes is disposed closer to the first engaging portion than the second engaging portion, while another first connecting hole is disposed closer to the second engaging portion than the first engaging portion; the first connecting holes are adapted to be penetrated through by a first connecting strap of the bag strap.
 18. The back plate of claim 16, wherein a second connecting hole is disposed on the second engaging portion of the back plate and is adapted to be passed through by a second connecting strap connected to the waistband, thereby to engage the back plate and the waistband.
 19. The back plate of claim 16, wherein a plurality of engaging holes are disposed on two lateral sides of the middle portion of the back plate.
 20. The back plate of claim 16, wherein a first bulging portion is formed on the middle portion, and a plurality of second bulging portions are formed on two lateral sides of the middle portion; a groove is formed between each adjacent second bulging portions and is formed between the first bulging portion and the second bulging portions. 